
1000 Amp Service Entrance Switchgear NEMA 1/3R
- 1000A service entrance switchgear
- NEMA 1 & 3R indoor/outdoor enclosures
- UL 891 certified & EUSERC approved
UL 891 Certified
Siemens Approved OEM
EUSERC Approved
DEI Power's commercial circuit breaker panels and business-grade distribution equipment include panelboards, switchboards, switchgear, service entrance sections, remote power panels, and meter mains. Built with genuine Siemens components, UL 891 certified, and EUSERC approved, these systems serve commercial, industrial, utility, and data center applications across amperage ranges from 400A to 4000A.




































































































Talk to our product experts for custom solutions.
Apply Filters






Showing 1 to 6 of 100 results
Commercial electrical panel pricing varies based on product type, amperage, voltage configuration, and enclosure rating. Panelboards and service entrance sections from 400A to 4000A are available at DEI Power with pricing provided on request. Factors such as NEMA 1 vs. NEMA 3R enclosures, custom configurations, and quantity also affect cost. Contact DEI Power at (866) 773-8050 for a same-day quote tailored to your project specifications.
Talk to our experts for custom solutions and tailored guidance.

Panelboards, switchboards, and SES provide reliable branch circuit distribution for office buildings, retail centers, and mixed-use campuses.

Remote power panels and switchgear deliver structured branch circuit distribution for hyperscale, enterprise, and colocation data center environments.

Heavy-duty switchgear and switchboards support large electrical load control and continuous operation in manufacturing and processing facilities.

UL 891-certified panelboards and remote power panels support life-safety branch loads, imaging equipment, and critical power systems in healthcare environments.
Talk to our experts for custom solutions and tailored guidance.
In-house manufacturing at our 50,000 sq. ft. Ontario, CA facility means most orders ship within 1 business day — with 4–6 week lead times on built-to-order configurations.
Every product is built with genuine Siemens components under OEM authorization, delivering UL 891-certified, code-compliant power distribution you can specify with confidence.
All switchgear and distribution equipment is manufactured and assembled in Ontario, California, meeting Buy America Build America requirements for government and infrastructure projects.
Submit your project requirements and an DEI Power specialist will respond with pricing and technical guidance, typically same business day.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.